Home / 213,045.15-319,679.51-80,017.23

Finding the Fourth Proportional to 213,045.15, 319,679.51 and 80,017.23

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Solution

The fourth proportional to 213,045.15, 319,679.51 and 80,017.23 is: 120,067.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,045.15 : 319,679.51 = 80,017.23 : x
  2. Step 2: Convert to fraction form
    213,045.15/319,679.51 = 80,017.23/x
  3. Step 3: Cross multiply
    213,045.15x = 319,679.51 × 80,017.23
  4. Step 4: Simplify right side
    213,045.15x = 25,579,868,877.96
  5. Step 5: Solve for x
    x = 25,579,868,877.96/213,045.15
  6. Step 6: Final answer
    x = 120,067.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.